Can you solve this OLYMPIAD MATHS CHALLENGE Equation (FACTORIAL and double FACTORIAL). Be careful

I'm from Tunisia

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My family

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Numbers

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days of the week

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school bag

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Your name

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Go to school

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Trois petits lapins

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Joli coucou

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my classroom

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How old are you

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Ma maison

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Hello hi

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Glad

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Qu'elle est jolie la Tunisie

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